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Rocha P, Rodrigo M, Moliner L, Hardy-Werbin M, Casadevall Aguilar D, Durán X, Arpí O, Clavé S, Salido M, Riera X, Menendez S, Taus Á, Pijuan L, Comerma L, Arriola Aperribay E. Higher PD-L1 expression correlates with lymphocyte infiltration in early non-small cell lung cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz064.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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2
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Alvarez-Teijeiro S, Menendez S, Villaronga M, Rodrigo J, Manterola L, Villalain L, Vicente J, Fernandez M, Lawrie C, Garcia-Pedrero J. PO-079 Dysregulation of miR-196B in head and neck cancers leads to pleiotropic effects in the tumour cells and CAFs. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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3
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Clavé S, Gimeno J, De Muga S, Pijuan L, Vidal J, Lorenzo M, Menendez S, Taus A, Muñoz-Mármol A, Carcereny E, Reguart N, Mate J, Serrano S, Albanell J, Espinet B, Arriola E, Salido M. Ros1 Rearrangements and Copy Number Alterations in Nsclc Patients: High Frequency of Ros1 Deletions. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu359.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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4
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Casadevall D, Gimeno J, Clavé S, Taus A, Pijuan L, Luque A, Lorenzo M, Menendez S, Espinet B, Albanell J, Arriola E. Heterogeneity of Met Assessed By Immunohistochemistry (Ihc) and Fluorescence-In-Situ Hybridization (Fish) in Nonsquamous Non-Small Cell Lung Cancer (Nsnsclc). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu326.27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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5
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Sparks A, Dayal S, Das J, Robertson P, Menendez S, Saville MK. The degradation of p53 and its major E3 ligase Mdm2 is differentially dependent on the proteasomal ubiquitin receptor S5a. Oncogene 2013; 33:4685-96. [PMID: 24121268 PMCID: PMC4051618 DOI: 10.1038/onc.2013.413] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Revised: 07/10/2013] [Accepted: 08/09/2013] [Indexed: 01/24/2023]
Abstract
p53 and its major E3 ligase Mdm2 are both ubiquitinated and targeted to the proteasome for degradation. Despite the importance of this in regulating the p53 pathway, little is known about the mechanisms of proteasomal recognition of ubiquitinated p53 and Mdm2. In this study, we show that knockdown of the proteasomal ubiquitin receptor S5a/PSMD4/Rpn10 inhibits p53 protein degradation and results in the accumulation of ubiquitinated p53. Overexpression of a dominant-negative deletion of S5a lacking its ubiquitin-interacting motifs (UIM)s, but which can be incorporated into the proteasome, also causes the stabilization of p53. Furthermore, small-interferring RNA (siRNA) rescue experiments confirm that the UIMs of S5a are required for the maintenance of low p53 levels. These observations indicate that S5a participates in the recognition of ubiquitinated p53 by the proteasome. In contrast, targeting S5a has no effect on the rate of degradation of Mdm2, indicating that proteasomal recognition of Mdm2 can be mediated by an S5a-independent pathway. S5a knockdown results in an increase in the transcriptional activity of p53. The selective stabilization of p53 and not Mdm2 provides a mechanism for p53 activation. Depletion of S5a causes a p53-dependent decrease in cell proliferation, demonstrating that p53 can have a dominant role in the response to targeting S5a. This study provides evidence for alternative pathways of proteasomal recognition of p53 and Mdm2. Differences in recognition by the proteasome could provide a means to modulate the relative stability of p53 and Mdm2 in response to cellular signals. In addition, they could be exploited for p53-activating therapies. This work shows that the degradation of proteins by the proteasome can be selectively dependent on S5a in human cells, and that this selectivity can extend to an E3 ubiquitin ligase and its substrate.
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Affiliation(s)
- A Sparks
- Division of Cancer Research, Medical Research Institute, Jacqui Wood Cancer Centre, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
| | - S Dayal
- Division of Cancer Research, Medical Research Institute, Jacqui Wood Cancer Centre, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
| | - J Das
- Division of Cancer Research, Medical Research Institute, Jacqui Wood Cancer Centre, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
| | - P Robertson
- Division of Molecular Medicine, College of Life Sciences, University of Dundee, Dundee, UK
| | - S Menendez
- MRC Centre for Regenerative Medicine, University of Edinburgh, Edinburgh, UK
| | - M K Saville
- Division of Cancer Research, Medical Research Institute, Jacqui Wood Cancer Centre, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
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6
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Rojo F, García-Parra J, Zazo S, Tusquets I, Ferrer-Lozano J, Menendez S, Eroles P, Chamizo C, Servitja S, Ramírez-Merino N, Lobo F, Bellosillo B, Corominas JM, Yelamos J, Serrano S, Lluch A, Rovira A, Albanell J. Nuclear PARP-1 protein overexpression is associated with poor overall survival in early breast cancer. Ann Oncol 2012; 23:1156-1164. [PMID: 21908496 DOI: 10.1093/annonc/mdr361] [Citation(s) in RCA: 123] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023] Open
Abstract
BACKGROUND Poly(ADP-ribose)polymerase-1 (PARP-1) is a highly promising novel target in breast cancer. However, the expression of PARP-1 protein in breast cancer and its associations with outcome are yet poorly characterized. PATIENTS AND METHODS Quantitative expression of PARP-1 protein was assayed by a specific immunohistochemical signal intensity scanning assay in a range of normal to malignant breast lesions, including a series of patients (N = 330) with operable breast cancer to correlate with clinicopathological factors and long-term outcome. RESULTS PARP-1 was overexpressed in about a third of ductal carcinoma in situ and infiltrating breast carcinomas. PARP-1 protein overexpression was associated to higher tumor grade (P = 0.01), estrogen-negative tumors (P < 0.001) and triple-negative phenotype (P < 0.001). The hazard ratio (HR) for death in patients with PARP-1 overexpressing tumors was 7.24 (95% CI; 3.56-14.75). In a multivariate analysis, PARP-1 overexpression was an independent prognostic factor for both disease-free (HR 10.05; 95% CI 5.42-10.66) and overall survival (HR 1.82; 95% CI 1.32-2.52). CONCLUSIONS Nuclear PARP-1 is overexpressed during the malignant transformation of the breast, particularly in triple-negative tumors, and independently predicts poor prognosis in operable invasive breast cancer.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Animals
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Breast Neoplasms/diagnosis
- Breast Neoplasms/metabolism
- Breast Neoplasms/mortality
- Breast Neoplasms/pathology
- Carcinoma, Ductal, Breast/diagnosis
- Carcinoma, Ductal, Breast/metabolism
- Carcinoma, Ductal, Breast/mortality
- Carcinoma, Ductal, Breast/pathology
- Cell Nucleus/metabolism
- Cell Nucleus/pathology
- Cells, Cultured
- Disease Progression
- Embryo, Mammalian
- Female
- Gene Expression Regulation, Neoplastic/drug effects
- Humans
- Mice
- Mice, Knockout
- Middle Aged
- Neoplasm Invasiveness
- Neoplasm Staging
- Poly (ADP-Ribose) Polymerase-1
- Poly(ADP-ribose) Polymerase Inhibitors
- Poly(ADP-ribose) Polymerases/genetics
- Poly(ADP-ribose) Polymerases/metabolism
- Prognosis
- RNA, Small Interfering/pharmacology
- Survival Analysis
- Up-Regulation/drug effects
- Up-Regulation/genetics
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Affiliation(s)
- F Rojo
- Cancer Research Program, IMIM (Hospital del Mar Research Institute), Barcelona; Department of Pathology, Hospital del Mar, Barcelona; Department of Pathology, IIS-Fundación Jiménez Díaz, Madrid
| | - J García-Parra
- Cancer Research Program, IMIM (Hospital del Mar Research Institute), Barcelona; Medical Oncology Department, Hospital del Mar, Barcelona
| | - S Zazo
- Department of Pathology, IIS-Fundación Jiménez Díaz, Madrid
| | - I Tusquets
- Medical Oncology Department, Hospital del Mar, Barcelona
| | - J Ferrer-Lozano
- Department of Oncology and Hematology, Hospital Clinico Universitario, Valencia
| | - S Menendez
- Cancer Research Program, IMIM (Hospital del Mar Research Institute), Barcelona; Medical Oncology Department, Hospital del Mar, Barcelona
| | - P Eroles
- Department of Oncology and Hematology, Hospital Clinico Universitario, Valencia
| | - C Chamizo
- Department of Pathology, IIS-Fundación Jiménez Díaz, Madrid
| | - S Servitja
- Medical Oncology Department, Hospital del Mar, Barcelona
| | | | - F Lobo
- Department of Oncology, IIS-Fundación Jiménez Díaz, Madrid
| | - B Bellosillo
- Department of Pathology, Hospital del Mar, Barcelona
| | - J M Corominas
- Cancer Research Program, IMIM (Hospital del Mar Research Institute), Barcelona; Department of Pathology, Hospital del Mar, Barcelona; Department of Medicine, Autonomous University of Barcelona, Barcelona
| | - J Yelamos
- Cancer Research Program, IMIM (Hospital del Mar Research Institute), Barcelona; Immunology Department, Hospital del Mar, Barcelona
| | - S Serrano
- Department of Pathology, Hospital del Mar, Barcelona; Department of Medicine, Autonomous University of Barcelona, Barcelona
| | - A Lluch
- Department of Oncology and Hematology, Hospital Clinico Universitario, Valencia; Department of Medicine, Valencia Central University, Valencia, Spain
| | - A Rovira
- Cancer Research Program, IMIM (Hospital del Mar Research Institute), Barcelona; Medical Oncology Department, Hospital del Mar, Barcelona
| | - J Albanell
- Cancer Research Program, IMIM (Hospital del Mar Research Institute), Barcelona; Medical Oncology Department, Hospital del Mar, Barcelona; Department of Medicine, Autonomous University of Barcelona, Barcelona.
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7
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Montagut C, Arriola E, Galvan AB, Rojo FG, Salido M, Gallen M, Garcia M, Martinez A, Pons F, Servitja S, Iglesias M, Menendez S, Serrano S, Sole F, Rovira A, Albanell J, Bellmunt J. ALK chromosomal alterations in neuroendocrine tumors. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.10585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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8
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Poliseno L, Huynh CT, Segura MF, Medicherla R, Menendez S, Rose AE, Pavlick AC, Boylan J, Osman I, Hernando E. Preclinical analyses of a new gamma-secretase inhibitor targeting notch signaling in melanoma. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.8546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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9
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Huynh CT, Segura MF, Menendez S, Darvishian F, Marcusson EG, Hernando E. Preclinical analysis of targeting miR-182 against melanoma liver metastasis. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.8554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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10
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Kikuchi E, Menendez S, Ozu C, Ohori M, Cordon-Cardo C, Logg CR, Kasahara N, Bochner BH. Delivery of replication-competent retrovirus expressing Escherichia coli purine nucleoside phosphorylase increases the metabolism of the prodrug, fludarabine phosphate and suppresses the growth of bladder tumor xenografts. Cancer Gene Ther 2007; 14:279-86. [PMID: 17218950 DOI: 10.1038/sj.cgt.7701013] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We have developed unique replication-competent retroviral (RCR) vectors based on murine leukemia virus that provide improved efficiency of viral delivery, allow for long-term transgene expression and demonstrate an intrinsic selectivity for transduction of rapidly dividing tumor cells. The purpose of this study was to evaluate the in vivo transduction efficiency and the therapeutic efficacy of the RCR vector mediated delivery of Escherichia coli purine nucleoside phosphorylase (PNP) in combination with fludarabine phosphate for bladder cancer. We constructed vectors containing green fluorescent protein (GFP) gene (ACE)-GFP) or PNP gene (ACE-PNP). KU-19-19 bladder tumors exhibited 28.3+/-16.1, 46.6+/-5.8 and 93.7+/-7.8% of GFP expression on 14, 18 and 26 days after intratumoral injection of ACE-GFP, respectively. GFP expression could not be observed in normal tissues surrounding the injected tumors. No detectable polymerase chain reaction products of GFP gene could be observed in any distant organs. Intratumoral injection of ACE-PNP, followed by systemically administered fludarabine phosphate, significantly inhibited the growth of pre-established KU-19-19 tumors. Our results indicate that RCR vectors are a potentially efficient gene delivery method and that the RCR vector mediated PNP gene transfer and fludarabine phosphate treatment might be a novel and potentially therapeutic modality for bladder cancer.
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Affiliation(s)
- E Kikuchi
- Department of Urology, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA
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11
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Bette M, Schlimme S, Mutters R, Menendez S, Hoffmann S, Schulz S. Influence of different anaesthetics on pro-inflammatory cytokine expression in rat spleen. Lab Anim 2004; 38:272-9. [PMID: 15207038 DOI: 10.1258/002367704323133655] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We examined the effect of five anaesthetic drugs commonly used in laboratory animal research (tribromoethanol, ketamine/xylazine, chloral hydrate, pentobarbital, and urethane) on the expression of four pro-inflammatory cytokines. The anaesthetic agents were applied at dosages normally used for deep surgical anaesthesia. Semiquantitative image analysis of interleukin (IL)-1beta, IL-2, IL-6, and tumour necrosis factor alpha (TNFalpha) mRNA expression in the spleen of male Wistar rats 4 h after application of the anaesthetic drugs showed that these had moderate immunomodulatory effects. Ketamine/xylazine, chloral hydrate, and pentobarbital enhanced the basal expression of IL-1beta and IL-6 mRNA in rat spleen, while urethane reduced splenic IL-1beta mRNA expression. Tribromoethanol, ketamine/xylazine, and urethane reduced the basal TNFalpha mRNA levels, whereas TNFalpha mRNA expression was unaffected by chloral hydrate and by pentobarbital. The data demonstrate that these anaesthetics have slight, but significant, effects on the basal immune status of rats.
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Affiliation(s)
- M Bette
- Institute of Anatomy and Cell Biology, Philipps-University of Marburg, Germany
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12
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Schulz S, Bette M, Schlimme S, Mutters R, Hoffmann S, Menendez S. Influence of O(3)/O(2)-pneumoperitoneum as an oxidative stressor on duration of anaesthesia, loss of different reflexes and cytokine mRNA expression. Lab Anim 2004; 38:261-71. [PMID: 15207037 DOI: 10.1258/002367704323133646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We analysed the effect of intraperitoneal insufflated ozonized oxygen on the anaesthetic strength generated by tribromoethanol, ketamine/xylazine, chloral hydrate, pentobarbital, and urethane in male Wistar rats. High dosages of anaesthetic drugs normally used for deep surgical anaesthesia were injected. The ozonized oxygen gas mixture was given five times daily on five consecutive days at 0.8 mg ozone/kg body weight before anaesthesia. The reflexes were measured 15, 30, 60, 90, 120, 180, and 240 min after injection of the anaesthetic drug. The sleeping time and the loss and regain of six different reflexes on noxious and non-aversive stimuli were recorded during the 4 h of observation. O(3)/O(2)-pneumoperitoneum (O(3)/O(2)-PP) reduced the sleeping time induced by tribromoethanol and ketamine/xylazine and increased it for chloral hydrate and pentobarbital. In accordance to the changes in the duration of anaesthesia, the O(3)/O(2)-PP induced significant changes in the loss of different reflexes. Additionally, the modulatory effect of the anaesthetic drugs on splenic cytokine mRNA expression was further influenced by O(3)/O(2)-PP. Thus, the influence of an oxidative stressor on anaesthetic potency and on the resting immune system has to be taken into account for experimental designs in which surgical anaesthesia is necessary for small laboratory animals.
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Affiliation(s)
- S Schulz
- Veterinary Services and Laboratory Medicine, Philipps-University of Marburg, Germany.
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13
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Ortega U, Duñabeitia M, Menendez S, Gonzalez-Murua C, Majada J. Effectiveness of mycorrhizal inoculation in the nursery on growth and water relations of Pinus radiata in different water regimes. Tree Physiol 2004; 24:65-73. [PMID: 14652215 DOI: 10.1093/treephys/24.1.65] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We compared the performance of mycorrhiza-inoculated and non-inoculated radiata pine (Pinus radiata D. Don) seedlings in two field studies. In the first study, above ground growth of 2-year-old container-grown trees was compared after planting in two areas that differed in water availability. Mycorrhizal inoculation significantly improved above ground growth in the 2 years after planting in both areas, especially at the drier site. In the second study, the influence of Rhizopogon roseolus (Corda ex Sturm) Th. Fries and Scleroderma citrinum Pers. on xylem water potential and hydraulic conductance at the soil-root interface of trees established at the same sites was assessed. Nursery inoculations with R. roseolus and S. citrinum improved tree growth during the first 2 years after field outplanting, particularly at the drier site.
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Affiliation(s)
- U Ortega
- Dpto. Biología Vegetal y Ecología, Facultad Ciencias, Universidad del País Vasco, UPV/EHU, Apdo. 644, 48080 Bilbao, Spain.
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14
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Schulz S, Rodriguez ZZ, Mutters R, Menendez S, Bette M. Repetitive pneumoperitoneum with ozonized oxygen as a preventive in lethal polymicrobial sepsis in rats. Eur Surg Res 2003; 35:26-34. [PMID: 12566784 DOI: 10.1159/000067032] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2002] [Accepted: 05/13/2002] [Indexed: 11/19/2022]
Abstract
The aim of this study was to test whether repetitive pretreatments of rats with ozonized oxygen at relatively low gas volumes into the abdomen (20 ml per rat per day) have any beneficial or detrimental effects on the course of a polymicrobial-induced lethal peritonitis. Peritonitis was induced in a surgical or a nonsurgical model by usage of fecal material from the cecum. As the biological read out we used the mortality analysis. To include possible mechanisms by which ozone might influence the septic outcome, we characterized the gene expression of the pro-inflammatory cytokines IL-1beta, IL-2, and TNF-alpha mRNA in lymphoid organs. In both models, we found a significant beneficial influence of a dose-dependent O(2)/O(3 )pneumoperitoneum on the survival rate when compared to control animals or to room air. The ozone-enhanced survival seems to be independent from altered cytokine expression because there were no differences noticed in the levels of bacterial-induced gene expression of IL-1beta and TNF-alpha in septic animals pretreated with ozonized oxygen when compared to control animals.
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Affiliation(s)
- S Schulz
- Veterinary Services and Laboratory Animal Medicine, Philipps-University of Marburg, Marburg, Germany.
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15
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Xiol X, Guardiola J, Menendez S, Lama C, Figueras J, Marcoval J, Serrano T, Botargues JM, Mañer M, Rota R. Risk factors for development of de novo neoplasia after liver transplantation. Liver Transpl 2001; 7:971-5. [PMID: 11699033 DOI: 10.1053/jlts.2001.28744] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Liver transplant recipients are at greater risk for de novo neoplasia, especially lymphoma and nonmelanoma skin cancer; however, risk factors for this complication have not been well studied. Clinical and pathological records of 137 consecutive liver transplant recipients who had survived for at least 1 year were reviewed to register de novo neoplasia. Ten variables were analyzed for their association with the development of de novo malignancies by means of a log-rank test and stepwise selection in a multivariate analysis using the Cox proportional hazard model. Thirty de novo neoplasias appeared in 22 of 137 transplant recipients between 12 and 104 months after orthotopic liver transplantation (OLT; median follow-up, 69 months): 14 patients had 21 skin cancers, 6 patients had solid-organ cancer, and 3 patients developed a lymphoproliferative disease. Probabilities of de novo neoplasia were 13% at 5 years post-OLT and 26% at 8 years post-OLT. The only associated risk factor for any neoplasia was age. Age and hepatocarcinoma were independent risk factors associated with skin cancer. That hepatocarcinoma in the explanted liver is an independent risk factor for skin cancer suggests there is individual susceptibility to both neoplasias.
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Affiliation(s)
- X Xiol
- Department of Gastroenterology, Hospital de Bellvitge Princeps d'Espanya, L'Hospitalet de Llobregat, Barcelona, Spain.
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16
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Lozano J, Menendez S, Morales A, Ehleiter D, Liao WC, Wagman R, Haimovitz-Friedman A, Fuks Z, Kolesnick R. Cell autonomous apoptosis defects in acid sphingomyelinase knockout fibroblasts. J Biol Chem 2001; 276:442-8. [PMID: 11031259 DOI: 10.1074/jbc.m006353200] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
A body of evidence suggests that stress-induced sphingomyelin hydrolysis to the second messenger ceramide initiates apoptosis in some cells. Although studies using lymphoblasts from Niemann-Pick disease patients or acid sphingomyelinase (ASMase)-deficient mice have provided genetic support for this hypothesis, these models have not been universally accepted as definitive. Here, we show that mouse embryonic fibroblasts (MEFs) prepared from asmase mice manifest cell autonomous defects in apoptosis in response to several stresses. In particular, asmase(-/-) MEFs failed to generate ceramide and were totally resistant to radiation-induced apoptosis but remained sensitive to staurosporine, which did not induce ceramide. asmase(-/-) MEFs were also partially resistant to tumor necrosis factor alpha/ actinomycin D and serum withdrawal. Thus, resistance to apoptosis in asmase(-/-) MEFs was not global but rather stress type specific. Most importantly, the sensitivity to stress could be restored in the asmase(-/-) MEFs by administration of natural ceramide. Overcoming apoptosis resistance by natural ceramide is evidence that it is the lack of ceramide, not ASMase, that determines apoptosis sensitivity. The ability to rescue the apoptotic phenotype without reversing the genotype by the product of the enzymatic deficiency provides proof that ceramide is obligate for apoptosis induction in response to some stresses.
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Affiliation(s)
- J Lozano
- Laboratory of Signal Transduction and Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York 10021, USA
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17
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Abstract
Ten batches of Cebreiro, a fresh or short-ripened acid-curd cheese, produced in the Galician mountains (NW Spain) were prepared from pasteurized milk inoculated with microorganisms isolated from raw-milk cheese. Two control batches were made with a Lactococcus lactis subsp. lactis starter; 8 batches were made with the lactococcal starter plus one of eight Enterococcus faecalis cultures: 4 E. faecalis var. liquefaciens (EFLB) and 4 E. faecalis var. faecalis (EFFB). Whey dry matter in the EFLB was notably higher than in the control batches and this was related to lower cheese yields. After over 15 days storage the highest counts of both aerobic bacteria and lactic acid bacteria were observed for the EFLB. The lower content in protein on dry matter was found in the EFLB. The beta-casein broke down to a greater extent in the EFLB than in the EFFB, the lowest values being obtained for the control batches. The higher level of hydrolysis of alphax1-casein and maximum peptide alpha(s1) - I/alpha(s1)-casein ratio were obtained for EFFB at day 15 of storage. In all the batches made with enterococci soluble nitrogen was higher than in the control batches, with the highest values in the EFLB. In all the batches made with enterococci, volatile free fatty acid, long-chain free fatty acids and diacetyl and acetoin contents at days 10 and 15 of storage were higher than in the control batches, the highest values being obtained for EFLB. Acetic acid in all batches accounted for the main proportion of the volatile free fatty acids. Butyric and caproic acids were not detected in the volatile free fatty acids fractions of the control batches, but both acids were detected in most of the batches made with enterococci. The more intense acid taste was found in the EFFB and control batches, the most bitter taste being found in the EFLB. Buttery, rancid and spicy flavors were more evident in the EFLB. The rancid and spicy flavors were positively correlated with the contents of volatile free fatty acids and long-chain free fatty acids. The cheeses of EFLB proved to be more crumbly than the EFFB, whereas the stickiness and deformability were higher in the EFFB. The batches with similar organoleptic characteristics to those of traditional cheese were the batch IV made with the less proteolytic strain of E. faecalis var. liquefaciens, and the batch VI made with a moderate lipolytic activity strain of E. faecalis var. faecalis.
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Affiliation(s)
- J A Centeno
- Departamento de Producción Animal, Centro de Investigaciones Agrarias de Mabegondo, A Coruña, Spain
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18
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Sheynkin YR, Ye Z, Menendez S, Liotta D, Veeck LL, Schlegel PN. Controlled Comparison of Percutaneous and Microsurgical Sperm Retrieval in Men With Obstructive Azoospermia. J Urol 1999. [DOI: 10.1097/00005392-199905000-00110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Sheynkin Y, Ye Z, Menendez S, Liotta D, Veeck L, Schlegel P. Controlled Comparison of Percutaneous and Microsurgical Sperm Retrieval in Men With Obstructive Azoospermia. J Urol 1999. [DOI: 10.1016/s0022-5347(05)69025-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Y.R. Sheynkin
- Department of Urology, James Buchanan Brady Foundation, Center for Reproductive Medicine and Infertility, New York Hospital-Cornell Medical Center and Population Council, Center for Biomedical Research, New York, New York
| | - Z. Ye
- Department of Urology, James Buchanan Brady Foundation, Center for Reproductive Medicine and Infertility, New York Hospital-Cornell Medical Center and Population Council, Center for Biomedical Research, New York, New York
| | - S. Menendez
- Department of Urology, James Buchanan Brady Foundation, Center for Reproductive Medicine and Infertility, New York Hospital-Cornell Medical Center and Population Council, Center for Biomedical Research, New York, New York
| | - D. Liotta
- Department of Urology, James Buchanan Brady Foundation, Center for Reproductive Medicine and Infertility, New York Hospital-Cornell Medical Center and Population Council, Center for Biomedical Research, New York, New York
| | - L.L. Veeck
- Department of Urology, James Buchanan Brady Foundation, Center for Reproductive Medicine and Infertility, New York Hospital-Cornell Medical Center and Population Council, Center for Biomedical Research, New York, New York
| | - P.N. Schlegel
- Department of Urology, James Buchanan Brady Foundation, Center for Reproductive Medicine and Infertility, New York Hospital-Cornell Medical Center and Population Council, Center for Biomedical Research, New York, New York
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Palermo G, Schlegel P, Sills E, Veeck L, Zaninovic N, Menendez S, Rosenwaks Z. Births After Intracytoplasmic Injection of Sperm Obtained by Testicular Extraction From Men With Nonmosaic Klinefelter's Syndrome. J Urol 1998. [DOI: 10.1016/s0022-5347(01)62469-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- G.D. Palermo
- Center for Reproductive Medicine and Infertility, Department of Obstetrics and Gynecology and James Buchanan Brady Foundation, Department of Urology, New York Hospital-Cornell Medical Center, New York, New York
| | - P.N. Schlegel
- Center for Reproductive Medicine and Infertility, Department of Obstetrics and Gynecology and James Buchanan Brady Foundation, Department of Urology, New York Hospital-Cornell Medical Center, New York, New York
| | - E.S. Sills
- Center for Reproductive Medicine and Infertility, Department of Obstetrics and Gynecology and James Buchanan Brady Foundation, Department of Urology, New York Hospital-Cornell Medical Center, New York, New York
| | - L.L. Veeck
- Center for Reproductive Medicine and Infertility, Department of Obstetrics and Gynecology and James Buchanan Brady Foundation, Department of Urology, New York Hospital-Cornell Medical Center, New York, New York
| | - N. Zaninovic
- Center for Reproductive Medicine and Infertility, Department of Obstetrics and Gynecology and James Buchanan Brady Foundation, Department of Urology, New York Hospital-Cornell Medical Center, New York, New York
| | - S. Menendez
- Center for Reproductive Medicine and Infertility, Department of Obstetrics and Gynecology and James Buchanan Brady Foundation, Department of Urology, New York Hospital-Cornell Medical Center, New York, New York
| | - Z. Rosenwaks
- Center for Reproductive Medicine and Infertility, Department of Obstetrics and Gynecology and James Buchanan Brady Foundation, Department of Urology, New York Hospital-Cornell Medical Center, New York, New York
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Sheynkin YR, Ye Z, Menendez S, Liotta D, Veeck LL, Schlegel P. Controlled comparison of percutaneous and microsurgical sperm retrieval in men with obstructive azoospermia. Hum Reprod 1998; 13:3086-9. [PMID: 9853861 DOI: 10.1093/humrep/13.11.3086] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A controlled comparison of the efficacy and reliability of sperm retrieval by testicular fine needle aspiration (TFNA), percutaneous testicular needle biopsy (PercBiopsy) and microsurgical epididymal sperm aspiration (MESA) was performed in nine patients with obstructive azoospermia. During a planned MESA procedure, sperm retrieval was attempted on the same testis with TFNA and PercBiopsy. Spermatozoa were obtained from all patients using MESA and PercBiopsy. Spermatozoa were retrieved using TFNA from 6/9 (67%) men. The mean number of epididymal spermatozoa retrieved with MESA (15 x 106) was significantly higher (P = 0.003) than that retrieved percutaneously from the testis. The mean number of spermatozoa obtained by PercBiopsy was 0.116 x 10(6) while TFNA recovered 0.014 x 106 spermatozoa (P = 0.025). MESA is the optimal choice to retrieve the greatest number of spermatozoa with highest motility for assisted reproduction and subsequent cryopreservation. However, percutaneous testicular retrieval does not require microsurgical expertise and is less invasive. Our results suggest that the optimal percutaneous procedure for sperm retrieval from the testis involves percutaneous testicular needle biopsy with an automatic biopsy gun.
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Affiliation(s)
- Y R Sheynkin
- James Buchanan Brady Foundation, Department of Urology, the Center for Reproductive Medicine and Infertility, New York Hospital-Cornell Medical Center, NY 10021, USA
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Palermo GD, Schlegel PN, Sills ES, Veeck LL, Zaninovic N, Menendez S, Rosenwaks Z. Births after intracytoplasmic injection of sperm obtained by testicular extraction from men with nonmosaic Klinefelter's syndrome. N Engl J Med 1998; 338:588-90. [PMID: 9475766 DOI: 10.1056/nejm199802263380905] [Citation(s) in RCA: 168] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- G D Palermo
- Department of Obstetrics and Gynecology, New York Hospital-Cornell Medical Center, NY 10021, USA
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Palermo G, Schlegel P, Menendez S, Zaninovic N, Veeck L, Goldstein M, Rosenwaks Z. O-150. Efficacy of ICSI in the different categories of azoospermia. Hum Reprod 1997. [DOI: 10.1093/humrep/12.suppl_2.73-a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Schlegel PN, Palermo GD, Goldstein M, Menendez S, Zaninovic N, Veeck LL, Rosenwaks Z. Testicular sperm extraction with intracytoplasmic sperm injection for nonobstructive azoospermia. Urology 1997; 49:435-40. [PMID: 9123710 DOI: 10.1016/s0090-4295(97)00032-0] [Citation(s) in RCA: 172] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVES To provide fertility for men with nonobstructive azoospermia. METHODS A retrospective review of treatment results at a university infertility center was undertaken. Sixteen couples entered an attempted in vitro fertilization (IVF)-intracytoplasmic sperm injection (ICSI) cycle for treatment of nonobstructive azoospermia. Each man was azoospermic, and the male factor diagnosis of nonobstructive azoospermia was made on testis biopsy for 14 men and on clinical grounds for 2 men. Sperm were retrieved by testicular biopsy on the day of oocyte retrieval. Results of testicular examinations, serum follicle-stimulating hormone levels, and testicular histology as well as evaluation of the success rates of sperm retrieval, fertilizations, and pregnancies were made. RESULTS Sperm were extracted from testis biopsies in 10 of 16 (62%) testicular sperm extraction (TESE) attempts. For cycles in which sperm were retrieved, normal fertilizations were achieved for 51 of 98 (52%) mature oocytes injected with testicular sperm in 10 couples. Biochemical pregnancies were achieved for 6 of 16 (38%) couples, with clinical pregnancies during 5 of 16 (31%) attempts at sperm retrieval, and ongoing pregnancy and subsequent live delivery for 4 of 16 (25%) attempts. CONCLUSIONS; Pretreatment clinical parameters are unable to predict which men with nonobstructive azoospermia will have spermatozoa retrieved by TESE. When sperm are found, clinical pregnancies can occur for half (5/10) of these couples using TESE with ICSI, with ongoing pregnancy and delivery for 4 of 10 (40%). Many men with nonobstructive azoospermia will have retrievable sperm with testis biopsy that are suitable for ICSI; however, 6 of 16 (38%) couples will not have sperm retrieved with TESE and may undergo an unnecessary IVF procedure.
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Affiliation(s)
- P N Schlegel
- James Buchanan Brady Foundation, The Department of Urology, New York, New York 10021, USA
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Sletten IW, Ognjanov V, Menendez S, Sundland D, el-Toumi A. Weight reduction with chlorphenetermine and phenmetrazine in obese psychiatric patients during chlorpromazine therapy. Curr Ther Res Clin Exp 1967; 9:570-5. [PMID: 4965506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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